تحلیل عوامل محدود‌‌‌‌کننده عملکرد نخودفرنگی (Pisum sativum L.) در شرایط مدیترانه‌ای (مطالعه موردی: گنبدکاووس)

نوع مقاله : مقالات پژوهشی

نویسندگان

1 دانشکده علوم کشاورزی و منابع طبیعی، دانشگاه گنبد کاووس

2 دانشگاه گنبد کاووس

چکیده

به منظور ارزیابی خلأ عملکرد نخود­­فرنگی (L. Pisum sativum) و تعیین عوامل محدودکننده عملکرد و سهم هر یک از آن­ها در ایجاد خلأ عملکرد، براساس اطلاعات جمع­آوری‌شده مربوط به مدیریت زراعی (45 متغیر) از 40 مزرعه در سطح شهرستان گنبد کاووس، استان گلستان در سال 97- 1396، تولید نخود­فرنگی با استفاده از روش تحلیل مقایسه کارکرد (CPA) مورد تجزیه و تحلیل قرار گرفت. عملکرد واقعی مزرعه و عملکرد پتانسیل، محاسبه‌شده با مدل به‌ترتیب برابر 7941 و 17708 کیلوگرم در هکتار و میزان خلأ عملکرد برابر 7/10078 کیلوگرم در هکتار برآورد شد. دلایل این خلأ عملکرد به ترتیب اهمیت عبارت بودند از: میزان بذر مصرفی (56/19 درصد)، میزان نیتروژن مصرفی (04/17 درصد)، دفعات مصرف علف‌کش (02/15 درصد)، مقدار پتاسیم قابل‌جذب در خاک (34/13 درصد)، مواد آلی خاک (81/12درصد)، مقدار فسفر قابل‌جذب در خاک (87/11 درصد)، تجربه کشاورز (36/10 درصد). بنابراین به نظر می‌رسد که با مدیریت صحیح مزارع و درنظرگرفتن عوامل خلأ عملکرد ذکرشده، می‌توان عملکرد نخودفرنگی در شهرستان گنبد را در حدود 7/10078 کیلوگرم در هکتار نسبت به عملکردهای فعلی کشاورزان، افزایش داد.

کلیدواژه‌ها

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